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Sustainable hybrid pervious concrete pavement structure

A permeable concrete and hybrid technology, applied in the field of concrete, can solve the problems of traffic paralysis, low compressive strength of permeable concrete, drop of urban groundwater level, etc., and achieve the effect of prolonging service life and good water permeability.

Active Publication Date: 2014-09-03
SHANGHAI CONSTR BUILDING MATERIALS TECH GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

A series of environmental problems ensued: the rainwater that can infiltrate the surface decreased significantly, and the underground water table in the city dropped sharply; A large amount of rainwater cannot penetrate into the ground in time, which may easily cause social problems such as flooded roads and traffic paralysis
Due to the low compressive strength of permeable concrete, coupled with people's understanding, foundation conditions, construction methods and other reasons, the permeable concrete is produced by the usual method, and its strength usually does not exceed 20 MPa under the condition of ensuring a certain water permeability, which is serious Affected the scope of application of permeable concrete

Method used

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  • Sustainable hybrid pervious concrete pavement structure
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Embodiment Construction

[0019] Below we will further elaborate on the permeable concrete pavement structure of the patent of the present invention in combination with the accompanying drawings and specific examples, in order to understand the structural composition and performance characteristics of the patent of the present invention more clearly, but this cannot be used to limit this invention. The protection scope of the invention patent.

[0020] Such as figure 1 As shown, the present invention is a pavement structure of a sustainable hybrid permeable concrete pavement. The pavement structure is laid on the soil road base. The pavement structure includes a surface layer, an intermediate layer and a bottom layer from top to bottom. The surface layer The middle layer and the middle layer are made of permeable concrete with different water permeability coefficients, and the bottom layer is a crushed stone cushion, and the water permeability coefficient and porosity gradually increase from the surfac...

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Abstract

The invention relates to a sustainable hybrid pervious concrete pavement structure. The pavement structure comprises a surface layer, a middle layer and a bottom layer from top to bottom; the surface layer and the middle layer are paved by use of pervious concrete different in perviousness coefficient, while the bottom layer is a hardcore bed, and the perviousness coefficients and the porosities gradually increase from the surface layer to the bottom layer; the pervious concrete of the surface layer is composed of the following components in kilograms per cubic meter (kg / m<3>): 300-400kg / m<3> of cement, 1400-1600 kg / m<3> of 5mm-10mm gravel, 2.2-3.25 kg / m<3> of additives and 85-100 kg / m<3> of mixing water; the pervious concrete of the middle layer is composed of the following components in kilometers per cubic meter (kg / m<3>): 280-380kg / m<3> of cement, 1350-1560 kg / m<3> of 10mm-20mm gravel, 2.0-3.0 kg / m<3> of additives and 75-90 kg / m<3> of mixing water. The sustainable hybrid pervious concrete pavement structure is a machined rolled pervious concrete pavement structure; a pyramid perviousness manner is adopted so that the perviousness of the pavement structure is excellent; water holes are not prone to be covered and blocked by dust, and therefore, the service life of the pervious concrete pavement structure is greatly increased.

Description

technical field [0001] The invention relates to concrete, in particular to a sustainable hybrid machine-pressed permeable concrete pavement structure. Background technique [0002] With the development of economy and the process of urbanization, the surface of modern cities is gradually covered by reinforced concrete buildings and impermeable roads. But these impermeable roads have brought many negative impacts to the ecological environment of the city. Concrete pavements lack the ability to breathe, absorb heat, and infiltrate rainwater compared to natural soil. A series of environmental problems ensued: the rainwater that can infiltrate the surface decreased significantly, and the underground water table in the city dropped sharply; A large amount of rainwater cannot penetrate into the ground in time, which may easily cause social problems such as flooded roads and traffic paralysis. [0003] As a new environmentally friendly and ecological road material, permea...

Claims

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Application Information

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IPC IPC(8): E01C7/32E01C7/14E01C11/24C04B28/00C04B14/02
Inventor 吴德龙王美华陈建大戴柳
Owner SHANGHAI CONSTR BUILDING MATERIALS TECH GRP CO LTD
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